sphagnum

n (pl ~s or sphagna / 5sfgnE; `sfA^nE/) type of moss that grows in wet areas, used esp for packing plants 泥炭藓（尤用於包裹植物）.

spellbinder, spellbinding, spellbound, speller, spelling, spelt, spelunker, spend, spend...time (in) doing, spender, spending, spendthrift, spent, sperm, sperm whale, spermaceti, spermatozoon, spermicidal, spermicide, spew, sphere, spherical, spherically, spheroid, sphincter, sphinx, spice, spiced, spiciness, spick, spicy, spider, spider plant, spider-man, spidery, spied, spiel, spigot, spike, spikiness,